Handy bass level controller If you're planning on using a Kenwood Excelon X802-5 five-channel amp or an X502-1 mono amplifier, you'll probably also want to get this KCA-RC01A wired remote control. That way, you can control the level of bass from your vehicle's front seat. Product highlights: wired remote subwoofer level controller for select Kenwood Excelon amplifiers: Kenwood Excelon X502-1 Kenwood Excelon X802-5 connecting cable included warranty: 1 year 60-day returns MFR # KCA-RC01A Item # 113RC01A What's in the box: Kenwood KCA-RC01A owner's manual Remote Controller 19.7' (6 meter) Cable (RJ-25 plugs on both ends) Flat washer Hex nut Warranty information Safety instructions Installation instructions on packaging Product Research Features Overview: The KCA-RC01A is a wired remote subwoofer level control for compatible Kenwood amplifiers. It allows you to adjust the output of the amplifier's subwoofer channel remotely. A 19.7' (6 meter) cable is included, with RJ-25 (phone-type) plugs on both ends, to connect the remote to the amplifier. Installation: The remote module is mounted behind a panel in the car, with its threaded shaft extending through a 5/16" hole in the panel, held in place using the included washer and hex nut. The knob is then installed on the shaft. Dimensions: Mounting Depth: 1⅝" Knob Protrusion: ¾" Chassis: Width: ⅞" Height: 1" Depth: 1¼"